EP0564404B1 - Procédé de teinture du cuir avec des mélanges de colorants - Google Patents

Procédé de teinture du cuir avec des mélanges de colorants Download PDF

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Publication number
EP0564404B1
EP0564404B1 EP93810208A EP93810208A EP0564404B1 EP 0564404 B1 EP0564404 B1 EP 0564404B1 EP 93810208 A EP93810208 A EP 93810208A EP 93810208 A EP93810208 A EP 93810208A EP 0564404 B1 EP0564404 B1 EP 0564404B1
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EP
European Patent Office
Prior art keywords
formula
dye
process according
hydrogen
alkyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP93810208A
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German (de)
English (en)
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EP0564404A1 (fr
Inventor
Peter Dr. Moser
Campbell Thomas Dr. Page
Alois Dr. Püntener
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BASF Schweiz AG
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Ciba Geigy AG
Ciba Spezialitaetenchemie Holding AG
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins
    • D06P3/3206—Material containing basic nitrogen containing amide groups leather skins using acid dyes
    • D06P3/3213—Material containing basic nitrogen containing amide groups leather skins using acid dyes monoazo
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
    • C09B67/0046—Mixtures of two or more azo dyes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins
    • D06P3/3206—Material containing basic nitrogen containing amide groups leather skins using acid dyes
    • D06P3/3226—Material containing basic nitrogen containing amide groups leather skins using acid dyes dis-polyazo

Definitions

  • the present invention relates to a method for dyeing leather with dye mixtures, in particular a method for trichromatic dyeing of leather, and to the leather dyed by the method.
  • the present invention had for its object to provide a method for dyeing leather with dye mixtures, according to which dyeing in brilliant shades is possible.
  • Particularly suitable dye mixtures should also enable the trichromatic dyeing of leather in brilliant shades.
  • the invention thus relates to a process for dyeing leather with dye mixtures, which is characterized in that at least two metal-free dyes each having a single sulfo or carboxy group and a molecular weight between 450 and 700 are used.
  • the dyes of formulas (1), (2) and (3) each have a single sulfo group.
  • Halogen means fluorine, bromine, iodine or especially chlorine.
  • a dye mixture is preferably used which contains a yellow dye of the formula (1), a red dye of the formula (2) and a blue dye of the formula (3).
  • R 1 is preferably methyl.
  • R 3 preferably denotes chlorine and R 4 preferably denotes sulfo or hydrogen.
  • R 5 are sulfo or a group or the phenyl radicals in the latter two groups being unsubstituted or substituted by chlorine.
  • R 6 are hydrogen, chlorine or a group wherein R 7 is hydrogen, methyl or ethyl, R 1 is methyl and n is 0, 1 or 2.
  • a particularly preferred embodiment of the process according to the invention consists in that the yellow dye of the formula used.
  • a further preferred embodiment of the process according to the invention is characterized in that a red dye of the formula (2) is used in which R 8 sulfo or means, wherein R 7 is methyl or ethyl.
  • a very particularly preferred embodiment of the process according to the invention consists in that the red dye of the formula used.
  • a further preferred embodiment of the process according to the invention is characterized in that a blue dye of the formula (3) is used in which R 14 is methyl and R 12 and R 13 are hydrogen or methyl.
  • dyes of the formula (3) in which R 15 is hydrogen, methyl or -CH 2 -NH-CO-CH 2 -Cl preference is given to using dyes of the formula (3) in which R 15 is hydrogen, methyl or -CH 2 -NH-CO-CH 2 -Cl, and also dyes of the formula (3) in which R 16 is -SO 2 - NH-C 2 H 4 -OH, -CH 2 -NH-CO-CH 2 -Cl or -CH 2 -NH-CO-C 6 H 5 means.
  • a very particularly preferred embodiment of the process according to the invention consists in that the blue dye of the formula used.
  • the parachor of which is between 900 and 1200 and the log P of which is between 1 and 4.
  • the Parachor is used according to the article by OR Quayle [Chem. Rev. 53 439 (1953)] and log P means the relative lipophilicity, the calculation of which by C. Hansch et al. [J. Med. Chem. 16 , 1207 (1973)].
  • a very particularly important embodiment of the process according to the invention consists in using a dye mixture containing the yellow dye of the formula (4), the red dye of the formula (5) and the blue dye of the formula (6) for trichromatic dyeing.
  • dyes of the formulas (2), (3) or (4) can be used in the dyeing process according to the invention. This can e.g. be useful if the shade should be cloudy or darker or in a slightly changed color than is achievable with the dyes mentioned.
  • Preferably used as further dyes are those which likewise have a sulfo or carboxy group and a molecular weight between 450 and 700.
  • a black dye of the formula is used above all as an additional dye where R 19 is hydrogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or C 1 -C 4 alkanoylamino and R 20 is chlorine or nitro, or a brown dye of the formula wherein R 21 is -COOH, -CONH 2 , -SO 3 H or -SO 3 NH 2 .
  • the black dye of the formula is preferably used as an additional black dye and the brown dye of the formula is preferably used as the additional brown dye
  • the dyes according to the invention are anionic in nature and are advantageously used in the form of their salts, in particular alkali metal salts or ammonium salts.
  • the alkali salts are in particular the lithium, potassium or sodium salts and ammonium salts are also understood to mean salts of organic amines, for example those which are substituted by C 1 -C 6 -alkyl or hydroxy-C 1 -C 6 -alkyl groups are.
  • the dyes used in the process according to the invention are known or can be are produced in a manner known per se.
  • the amounts in which the dyes used according to the invention are used in the dye baths can vary within wide limits depending on the desired depth of color. In general, amounts of dye of 0.1 to 10, preferably 0.5 to 4,% by weight, based on the weight of the leather to be dyed, are advantageous.
  • the dye liquor can also contain other additives, e.g. Acids, bases or salts to adjust the desired pH value, as well as auxiliaries such as Wetting agents, greasing agents, color-deepening aids, leveling agents, penetrants and / or anti-foaming agents.
  • additives e.g. Acids, bases or salts to adjust the desired pH value, as well as auxiliaries such as Wetting agents, greasing agents, color-deepening aids, leveling agents, penetrants and / or anti-foaming agents.
  • the method according to the invention has the great advantage that it is not only suitable for a specific type of leather, but can also be used for the various types of leather, for example chrome leather, retanned leather or suede from goat, cow or pig.
  • the dyeing is preferably carried out by the exhaust process, e.g. at a liquor ratio of 1: 1.5 to 1:20, preferably 1: 2 to 1:10, and at temperatures of 20 to 100 ° C, preferably 30 to 60 ° C.
  • the leather can be pretreated be subjected, for example, to a neutralization or roll.
  • the dyeing time varies depending on the type of leather and the desired depth of color, but is generally between 30 and 180 minutes. After the dyeing, the leather is rinsed and finished as usual.
  • the process according to the invention gives leather dyeings in brilliant shades and with good fastness properties, such as Light and wet fastness properties. Since the individual dyes penetrate approximately the same depth into the leather, the nuance of the colors on the surface and in the deeper layers of the leather is the same.
  • the individual dyes are mixed with one another for use in dyeing.
  • the dyes can be prepared individually as stock solutions for the dyeing process or formulated together in a single stock solution.
  • the dye trichromatic mixtures containing at least one yellow dye of the formula (1), at least one red dye of the formula (2) and at least one blue dye of the formula (3) are known from EP-A-0 181 292.
  • Preferred dye trichromatic mixtures contain 1 to 98% by weight of a yellow dye of the formula (1), 1 to 98% by weight of a red dye of the formula (2) and 1 to 98% by weight of a blue dye of the formula (3) , in particular 10 to 70% by weight of a yellow dye of the formula (1), 10 to 50% by weight of a red dye of the formula (2) and 10 to 50% by weight of a blue dye of the formula (3).

Claims (24)

  1. Procédé pour la teinture du cuir avec des mélanges de colorants, caractérisé en ce que l'on utilisé au moins deux colorants exempts de métaux comportant chacun un seul groupe sulfo et ayant une masse moléculaire comprise entre 450 et 700, choisis dans le groupe formé par
    a) un colorant jaune de formule
    Figure imgb0078
     dans laquelle
    R1 représente un groupe alkyle en C1-4,
    R2 représente un groupe OH ou NH2,
    R3 représente un atome d'hydrogène ou d'halogène,
    R4 représente un atome d'hydrogène ou un groupe sulfo,
    R5 représente un atome d'hydrogène ou d'halogène, ou un groupe sulfo ou
    Figure imgb0079
     les résidus phényle de ces trois derniers groupes pouvant être halogénés, et
    R6 représente un atome d'hydrogène ou d'halogène ou un groupe
    Figure imgb0080
     où R7 est un atome d'hydrogène ou un groupe alkyle en C1-4 , R1 est un groupe alkyle en C1-4 et n vaut 0, 1, 2 ou 3,
    b) un colorant rouge de formule
    Figure imgb0081
     dans laquelle
    R8 est un groupe sulfo ou un groupe
    Figure imgb0082
    R9 est un groupe sulfo,
    Figure imgb0083
     ou un groupe
    Figure imgb0084
    où R7 représente un atome d'hydrogène ou un résidu alkyle en C1-4, R1 représente un groupe alkyle en C1-4 et n vaut 1, 2 ou 3,
    R10 est un atome d'hydrogène, un résidu (alkyle en C1-4)-carbonylamino ou halogéno-(alkyle en C1-4)-carbonylamino et
    R11 repésente un atome d'hydrogène ou d'halogène, et
    c) un colorant bleu de formule
    Figure imgb0085
     dans laquelle
    R12, R13 et R14 représentent, indépendamment l'un de l'autre, chacun un atome d'hydrogène ou un groupe alkyle en C1-4,
    R15 représente un atome d'hydrogène, un groupe méthyle, -SO2-NH-R17 ou -CH2-NH-CO-R18 et
    R16 représente un atome d'hydrogène, un groupe alkyle en C1-4 ou R15, où
    R17 représente un groupe hydroxyalkyle en C1-4 et R18 un groupe phényle ou halogénoalkyle en C1-4.
  2. Procédé conforme à la revendication 1, caractérisé en ce que l'on utilise pour la teinture en trichromie un mélange de colorant contenant un colorant jaune de formule (1), un colorant rouge de formule (2) et un colorant bleu de formule (3).
  3. Procédé conforme aux revendications 1 et 2, caractérisé en ce que l'on utilise un colorant jaune de formule (1) dans lequel R1 est un résidu méthyle.
  4. Procédé conforme à une des revendications 1 à 3, caractérisé en ce que l'on utilise un colorant j aune de formule (1) dans lequel R3 représente un atome de chlore.
  5. Procédé conforme à une des revendications 1 à 4, caractérisé en ce que l'on utilise un colorant jaune de formule (1) dans lequel R4 est un groupe sulfo ou un atome d'hydrogène.
  6. Procédé conforme à une des revendications 1 à 5, caractérisé en ce que l'on utilise un colorant j aune de formule (1) dans lequel R5 est un groupe sulfo ou un groupe O-phényle ou -SO2-O-phényle, les résidus phényle de ces deux derniers groupes pouvant être non substitués ou chlorés.
  7. Procédé conforme à une des revendications 1 à 6, caractérisé en ce que l'on utilise un colorant jaune de formule (1) dans lequel R6 est un atome d'hydrogène ou de chlore ou un groupe
    Figure imgb0086
     où R7 représente un atome d'hydrogène, un groupe méthyle ou éthyle, R1 représente un résidu méthyle et n vaut 0, 1 ou 2.
  8. Procédé conforme à une des revendications 1 à 7, caractérisé en ce que l'on utilise le colorant jaune de formule
    Figure imgb0087
  9. Procédé conforme à une des revendications 1 à 8, caractérisé en ce que l'on utilise un colorant rouge de formule (2) dans lequel R8 représente un résidu sulfo ou
    Figure imgb0088
     où R7 est un groupe méthyle ou éthyle.
  10. Procédé conforme à une des revendications 1 à 9, caractérisé en ce que l'on utilise un colorant rouge de formule (2) dans lequel R9 est un groupe sulfo,
    Figure imgb0089
     où R7 est un groupe méthyle ou éthyle et n vaut 1.
  11. Procédé conforme à une des revendications 1 à 10, caractérisé en ce que l'on utilise un colorant rouge de formule (2) dans lequel R10 est un atome d'hydrogène ou un groupe chlorométhylcarbonylamino.
  12. Procédé conforme à une des revendications 1 à 11, caractérisé en ce que l'on utilise un colorant rouge de formule (2) dans lequel R11 est un atome d'hydrogène ou de chlore.
  13. Procédé conforme à une des revendications 1 à 12, caractérisé en ce que l'on utilise un colorant rouge de formule
    Figure imgb0090
  14. Procédé conforme à une des revendications 1 à 13, caractérisé en ce que l'on utilise un colorant bleu de formule (3) dans lequel R14 représente un groupe méthyle et R12 et R13 représentent un atome d'hydrogène ou un groupe méthyle.
  15. Procédé conforme à une des revendications 1 à 14, caractérisé en ce que l'on utilise un colorant bleu de formule (3) dans lequel R15 représente un atome d'hydrogène, un groupe méthyle ou -CH2-NH-CO-CH2-Cl.
  16. Procédé conforme à une des revendications 1 à 15, caractérisé en ce que l'on utilise un colorant bleu de formule (3) dans lequel R16 représente un groupe -SO2-NH-C2H4-OH, -CH2-NH-CO-CH2-Cl ou -CH2-NHCO-C6H5.
  17. Procédé conforme à une des revendications 1 à 16, caractérisé en ce que l'on utilise le colorant bleu de formule
    Figure imgb0091
  18. Procédé conforme à une des revendications 1 à 17, caractérisé en ce que l'on utilise au moins deux colorants ayant un parachor compris entre 900 et 1200 et dont la valeur de log P est comprise entre 1 et 4.
  19. Procédé conforme à une des revendications 1 à 18, caractérisé en ce que l'on utilise en plus un colorant noir de formule
    Figure imgb0092
     dans lequel R19 représente un atome d'hydrogène, un groupe alkyle en C1-4, alcoxy en C1-4 ou (alcanoyle en C1-4)-amino et R20 est un atome de chlore ou un groupe nitro, ou un colorant marron de formule
    Figure imgb0093
     dans laquelle R21 est un groupe -COOH, -CONH2, -SO3H ou -SO3NH2..
  20. Procédé conforme à une des revendications 1 à 19 caractérisé en ce que l'on utilise en plus le colorant noir de formule
    Figure imgb0094
     ou le colorant marron de formule
    Figure imgb0095
  21. Procédé conforme aux revendications 1, 2, 8, 13 et 17, caractérisé en ce que l'on utilise pour la teinture en trichromie un mélange de colorants contenant le colorant jaune de formule (4), le colorant rouge de formule (5) et le colorant bleu de formule (6).
  22. Procédé conforme à une des revendications 1 à 21, caractérisé en ce que l'on utilise un bain de teinture contenant en plus un agent de renforcement de la couleur.
  23. Procédé conforme à la revendication 22, caractérisé en ce que l'on utilise un bain de teinture contenant, comme agent de renforcement de la couleur, une alkylamine éthoxylée.
  24. Cuir teint selon le procédé conforme aux revendications 1 à 23.
EP93810208A 1992-04-01 1993-03-23 Procédé de teinture du cuir avec des mélanges de colorants Expired - Lifetime EP0564404B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH105392 1992-04-01
CH1053/92 1992-04-01

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EP0564404B1 true EP0564404B1 (fr) 1997-06-25

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EP (1) EP0564404B1 (fr)
JP (1) JPH0649778A (fr)
DE (1) DE59306811D1 (fr)
ES (1) ES2105192T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851389A1 (de) * 1998-11-07 2000-05-11 Dystar Textilfarben Gmbh & Co Gelbe Farbstoffmischungen von wasserlöslichen faserreaktiven Azofarbstoffen und ihre Verwendung
US7001435B2 (en) * 2002-05-30 2006-02-21 Automotive Technology, Inc. Leather treatment
AU2011248537B2 (en) 2010-04-28 2014-04-17 University Of Georgia Research Foundation, Inc. Photochemical cross-linkable polymers, methods of marking photochemical cross-linkable polymers, methods of using photochemical cross-linkable polymers, and methods of making articles containing photochemical cross-linkable polymers
US9315628B2 (en) 2011-07-15 2016-04-19 University Of Georgia Research Foundation, Inc. Permanent attachment of agents to surfaces containing C-H functionality
US9839213B2 (en) 2011-10-14 2017-12-12 The University Of Georgia Research Foundation, Inc. Photochemical cross-linkable polymers, methods of making photochemical cross-linkable polymers, methods of using photochemical cross-linkable polymers, and methods of making articles containing photochemical cross-linkable polymers
CN103275516B (zh) * 2013-06-06 2016-05-11 恒升化工（启东）有限公司 一种含活性基团的酸性黄色染料的生产方法
CN114575171A (zh) * 2021-12-22 2022-06-03 浙江中辉裘革科技有限公司 一种羊皮低温染色用染料及其染色工艺

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226336A (en) * 1988-12-22 1990-06-27 Sandoz Ltd Trichromatic reactive dye mixture

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH191165A (de) * 1936-03-05 1937-05-31 Geigy Ag J R Verfahren zur Darstellung eines neuen Monoazofarbstoffes.
US3819690A (en) * 1971-04-19 1974-06-25 Ciba Geigy Ag Acid nitro dyestuffs,their manufacture and use
JPS4996010A (fr) * 1972-10-03 1974-09-11
LU78597A1 (de) * 1977-11-28 1979-06-13 Ciba Geigy Ag Neue anthrachinonverbindungen,deren herstellung und verwendung
EP0061670B2 (fr) * 1981-03-23 1994-06-01 Ciba-Geigy Ag Procédé de teinture de cuir et de peaux avec des mélanges de colorants
EP0092512B1 (fr) * 1982-04-08 1986-04-30 Ciba-Geigy Ag Procédé de teinture ou d'impression en trois couleurs
DE3326954A1 (de) * 1982-08-06 1984-02-09 Sandoz-Patent-GmbH, 7850 Lörrach Anionische monoazoverbindungen, verfahren zur herstellung und ihre verwendung bei faerbe- und druckverfahren
CH654845A5 (de) * 1982-08-06 1986-03-14 Sandoz Ag Anionische monoazoverbindungen, verfahren zur herstellung und ihre verwendung bei faerbe- und druckverfahren.
EP0127579B1 (fr) * 1983-05-25 1987-10-07 Ciba-Geigy Ag Procédé de teinture ou d'impression en trois couleurs
DE3578870D1 (de) * 1984-11-08 1990-08-30 Ciba Geigy Ag Verfahren zum kontinuierlichen trichromie-faerben von synthetischen polyamidmaterialien.
US4652269A (en) * 1984-11-08 1987-03-24 Ciba-Geigy Corporation Process for the continuous trichromatic dyeing of synthetic polyamide materials: including a blue anthraquinone reactive dye
US4799933A (en) * 1986-01-21 1989-01-24 Ciba-Geigy Corporation Process for the trichromatic dyeing of leather
GB2236542B (en) * 1989-10-06 1992-04-15 Sandoz Ltd Dye mixtures and their use in trichromatic dyeing processes
EP0425435A1 (fr) * 1989-10-23 1991-05-02 Ciba-Geigy Ag Procédé de teinture ou d'impression trichromique

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226336A (en) * 1988-12-22 1990-06-27 Sandoz Ltd Trichromatic reactive dye mixture

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DE59306811D1 (de) 1997-07-31
EP0564404A1 (fr) 1993-10-06
ES2105192T3 (es) 1997-10-16
US5354341A (en) 1994-10-11
JPH0649778A (ja) 1994-02-22

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